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technologies:geodata_concepts:crs:crs_orbit [2012/02/26 10:56] jeroen.vermeulen@orbitgis.com Links to technologies:geodata_concepts:resources:projection:prj changed to technologies:geodata_concepts:crs:prj |
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- | ===== Coordinate Reference Systems in Orbit ====== | ||
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- | This page describes only the use and application of Coordinate Reference Systems in Orbit. \\ | ||
- | For clear and short overview of the concepts of coordinate systems, datum and projections, | ||
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- | ===== Support of EPSG ===== | ||
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- | {{: | ||
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- | ===== Dataset CRS ===== | ||
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- | A coordinate reference system (CRS) or spatial reference system (SRS) is a coordinate-based local, regional or global system used to locate geographical entities. A coordinate reference system defines a specific map projection, as well as transformations between different spatial reference systems. \\ | ||
- | Coordinate reference systems can be referred to using a SRID integer, including EPSG codes defined by the International Association of Oil and Gas Producers. | ||
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- | More information about CRS and Map Projections: | ||
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- | To set the Dataset CRS of a dataset in Orbit GIS, see [[orbitgis: | ||
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- | ===== MapCanvas CRS ====== | ||
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- | ===== Custom CRS Definitions ===== | ||
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- | The EPSG dataset does not and cannot record all possible geodetic parameters in use around the world. OrbitGIS accepts new CRS definitions from OGC (Open Geospatial Consortium) [[http:// | ||
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- | ==== How to add a custom CRS Definition ? ==== | ||
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- | - Create a plain ASCII text file with the extension // | ||
- | - The prj-file | ||
- | - The name of the file should be a numeric code, like " | ||
- | - After starting OrbitGIS the new CRS systems can be found by selecting " | ||
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- | <note important> | ||
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Last modified:: 2012/02/26 10:56